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• W2016273341 abstract "Steady-state dissolution rates of anorthite (An96) were measured as a function of aqueous Si, Al, and Ca concentration at temperatures from 45 to 95°C and over the pH range 2.4 to 3.2 using a Ti mixed-flow reactor. All dissolution experiments exhibited stoichiometric dissolution. The concentration of aqueous Si, Al, and Ca ranged from ∼7 X× 10−5 to ∼1 × 10−3 molal, ∼6 × 10−5 to ∼3.4 × 10−3 molal, and ∼5 × 10−5 to ∼0.1 molal, respectively, corresponding to calculated anorthite chemical affinities ranging from ∼ 115 to ∼65 kJ/mol. Measured anorthite dissolution rates at constant temperature are proportional to αH+1.5, where αH+ designates the activity of the hydrogen ion, and consistent with an apparent activation energy of 18.4 kJ/mol. Anorthite dissolution rates are independent of aqueous Al concentration, which is in contrast with the alkali feldspars, whose constant pH, far from equilibrium rates are proportional to αAl+3−0.33 (Oelkers et al., 1994; Gautier et al., 1994; E. H. Oelkers and J. Schott, unpubl. data). This difference suggests a distinctly different dissolution mechanism. For the case of both types of feldspars it appears that Al is more readily removed than Si from the aluminosilicate framework. Because it has a SiAl ratio of 3, the removal of Al from the alkali feldspar framework leaves partially linked Si tetrehedra. Removal of Si still requires the breaking of SiO bonds, and thus the overall alkali feldspar dissolution rate is controlled by the decomposition of a silica-rich surface precursor. The variation of alkali feldspar dissolution rates with aqueous Al activity stems from the fact that the formation of this precursor requires the removal of Al. In contrast, because it has a SiAl ratio of 1, the removal of Al from the anorthite framework leaves completely detached Si tetrehedra. As a result, the removal of Si does not require the breaking of SiO bonds, the rate controlling precursor complex is not formed by the removal of Al, and the overall dissolution rate is independent of aqueous Al concentration at far from equilibrium conditions. It can be inferred from these results that the variation of far from equilibrium aluminosilicate dissolution rates on aqueous Al depends on the number and relative strength of different bond types that need to be broken for mineral hydrolysis." @default.
• W2016273341 created "2016-06-24" @default.
• W2016273341 creator A5044132845 @default.
• W2016273341 creator A5078618171 @default.
• W2016273341 date "1995-12-01" @default.
• W2016273341 modified "2023-09-26" @default.
• W2016273341 title "Experimental study of anorthite dissolution and the relative mechanism of feldspar hydrolysis" @default.
• W2016273341 cites W1963618860 @default.
• W2016273341 cites W1964014117 @default.
• W2016273341 cites W1964819703 @default.
• W2016273341 cites W1974479088 @default.
• W2016273341 cites W1974488778 @default.
• W2016273341 cites W1980127260 @default.
• W2016273341 cites W1980979597 @default.
• W2016273341 cites W1983345106 @default.
• W2016273341 cites W1992214743 @default.
• W2016273341 cites W1993209602 @default.
• W2016273341 cites W1993479497 @default.
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• W2016273341 cites W2001981172 @default.
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• W2016273341 cites W2008629539 @default.
• W2016273341 cites W2010621570 @default.
• W2016273341 cites W2011154313 @default.
• W2016273341 cites W2011681264 @default.
• W2016273341 cites W2011698018 @default.
• W2016273341 cites W2012286381 @default.
• W2016273341 cites W2013556704 @default.
• W2016273341 cites W2016095559 @default.
• W2016273341 cites W2019937345 @default.
• W2016273341 cites W2023964469 @default.
• W2016273341 cites W2024402527 @default.
• W2016273341 cites W2026709093 @default.
• W2016273341 cites W2028498253 @default.
• W2016273341 cites W2028873366 @default.
• W2016273341 cites W2030317248 @default.
• W2016273341 cites W2043141740 @default.
• W2016273341 cites W2047601379 @default.
• W2016273341 cites W2050548480 @default.
• W2016273341 cites W2051028254 @default.
• W2016273341 cites W2053260861 @default.
• W2016273341 cites W2055024930 @default.
• W2016273341 cites W2057921967 @default.
• W2016273341 cites W2067228709 @default.
• W2016273341 cites W2068258275 @default.
• W2016273341 cites W2069428893 @default.
• W2016273341 cites W2071682850 @default.
• W2016273341 cites W2075573383 @default.
• W2016273341 cites W2075849155 @default.
• W2016273341 cites W2080069544 @default.
• W2016273341 cites W2080592662 @default.
• W2016273341 cites W2084241226 @default.
• W2016273341 cites W2085468600 @default.
• W2016273341 cites W2088238144 @default.
• W2016273341 cites W2090674961 @default.
• W2016273341 cites W2090946666 @default.
• W2016273341 cites W2091651204 @default.
• W2016273341 cites W2111473359 @default.
• W2016273341 cites W2127100026 @default.
• W2016273341 cites W2135195141 @default.
• W2016273341 cites W2135226847 @default.
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• W2016273341 cites W2181301164 @default.
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• W2016273341 cites W2334136939 @default.
• W2016273341 cites W2603023950 @default.
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• W2016273341 doi "https://doi.org/10.1016/0016-7037(95)00326-6" @default.
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